In Ireland long ago there were fairies and giants. The giants used to get big stones and they used to throw them down rocks to see which of them could throw them the farthest. There is a giant's grave in Patrick Martin's field and there is a headstone over it.
This headstone got broken and Patrick Martin had no luck until it was mended. His cattle used to all die. He sent for men to mend it. When it was mended no more of his cattle died.